Top barrel for guns



FIG. 1 is a side view of a top barrel for guns;

FIG. 2 is a side view from the reverse side;

FIG. 3 is an end view; and

FIG. 4 is a top view thereof.

The broken line showing of the gun in the several views is for illustrative purposes only and form no part of the claimed barrel. 

The ornamental design for a top barrel for guns, as shown and described. 